<script setup>
import {
    Edit,
    Delete
} from '@element-plus/icons-vue'

import { ref } from 'vue'

//文章分类数据模型
const categorys = ref([
    {
        "id": 3,
        "categoryName": "美食",
        "categoryAlias": "my",
        "createTime": "2023-09-02 12:06:59",
        "updateTime": "2023-09-02 12:06:59"
    },
    {
        "id": 4,
        "categoryName": "娱乐",
        "categoryAlias": "yl",
        "createTime": "2023-09-02 12:08:16",
        "updateTime": "2023-09-02 12:08:16"
    },
    {
        "id": 5,
        "categoryName": "军事",
        "categoryAlias": "js",
        "createTime": "2023-09-02 12:08:33",
        "updateTime": "2023-09-02 12:08:33"
    }
])

//用户搜索时选中的分类id
const categoryId=ref('')

//用户搜索时选中的发布状态
const state=ref('')

//文章列表数据模型
const articles = ref([
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
])



//分页条数据模型
const pageNum = ref(1)//当前页
const total = ref(20)//总条数
const pageSize = ref(5)//每页条数



//回显文章分类
import { articleCategoryListService } from '@/api/article.js'
const getArticleCategoryList = async ()=>{
    let result = await articleCategoryListService();
    categorys.value = result.data
}
getArticleCategoryList()

//文章列表查询
import { articleListService , articleAddService } from '@/api/article.js'

const getArticles = async () => {
    let params = {
        pageNum: pageNum.value,
        pageSize: pageSize.value,
        categoryId: categoryId.value ? categoryId.value : null,
        state: state.value ? state.value : null
    }
    let result = await articleListService(params);


    //渲染列表数据
    articles.value = result.data.items

    // console.log(result.data.items)
    //为列表中添加categoryName属性
    for(let i=0;i<articles.value.length;i++){
        let article = articles.value[i];
        for(let j=0;j<categorys.value.length;j++){
            if(article.categoryId===categorys.value[j].id){
                article.categoryName=categorys.value[j].categoryName
            }
        }
    }
    //渲染总条数
    total.value=result.data.total
}
getArticles()

//当每页条数发生了变化，调用此函数
const onSizeChange = (size) => {
    pageSize.value = size
    getArticles()
}
//当前页码发生变化，调用此函数
const onCurrentChange = (num) => {
    pageNum.value = num
    getArticles()
}


//抽屉组件
import {Plus} from '@element-plus/icons-vue'
//控制抽屉是否显示
const visibleDrawer = ref(false)
//添加表单数据模型
const articleModel = ref({
    title: '',
    categoryId: '',
    coverImg: '',
    content:'',
    state:'',
    content:''
})

//文本组件
import { QuillEditor } from '@vueup/vue-quill'
import '@vueup/vue-quill/dist/vue-quill.snow.css'



import { useTokenStore } from '@/stores/token.js'
const tokenStore = useTokenStore()
//图片自动上传的回调
const uploadSuccess =(result)=>{
    articleModel.value.coverImg = result.data
    if(articleModel.value.coverImg=== null){
        ElMessage.error("图片上传错误,请检查图片是否过大！")
    }
}

//添加文章
import { arrowMiddleware, ElMessage ,ElMessageBox} from 'element-plus';
const addArticle=async (state)=>{
    articleModel.value.state = state
    let result = await articleAddService(articleModel.value);
    ElMessage.success(result.message? result.message:'添加成功')
    //再次调用getArticles,获取文章
    getArticles()
    //隐藏抽屉
    visibleDrawer.value=false
}

const title =ref('')


//编辑回调函数
const updateArticle=(row)=>{
    visibleDrawer.value=true,
    title.value ='编辑文章',
    articleModel.value.title=row.title,
    articleModel.value.categoryId=row.categoryId,
    articleModel.value.coverImg=row.coverImg,
    articleModel.value.content=row.content,
    articleModel.value.id = row.id
}


import {articleUpDataService,articleDeleteService,articleDetailService} from '@/api/article.js'
//更新函数
const articleUpData =async (state)=>{
    articleModel.value.state = state
    const result = await articleUpDataService(articleModel.value)

    ElMessage.success(result.message? result.message:'更新成功')
     //再次调用getArticles,获取文章
     getArticles()
    //隐藏抽屉
    visibleDrawer.value=false

}

//清空数据模型
const clearArticleModel =()=>{
    articleModel.value.title='',
    articleModel.value.categoryId='',
    articleModel.value.coverImg='',
    articleModel.value.content=' ',
    articleModel.value.state=''

}



//删除按钮
const deleteArticle = (row) => {
    
    ElMessageBox.confirm(
        '你确认删除该分类信息吗？',
        '温馨提示',
        {
            confirmButtonText: '确认',
            cancelButtonText: '取消',
            type: 'warning',
        }
        
    )
        .then(async () => {
            //用户点击了确认
            let result = await articleDeleteService(row.id)
            ElMessage.success(result.message?result.message:'删除成功')
            //再次调用getAllCategory，获取所有文章分类
            getArticles()
            

        })
        .catch(() => {
            //用户点击了取消
            ElMessage({
                type: 'info',
                message: '取消删除',
            })
        })
}

const isZs = ref(true)


//获取单个文章
const articleDetail=async (row)=>{
    const  result=await articleDetailService(row.id)
    articles.value = result.data
}

import { useRouter } from 'vue-router'
const router = useRouter()

function refreshPage() {  
    location.reload(); // 重新加载当前页面  
}  

//年
let year = new Date().getFullYear();
//月份是从0月开始获取的，所以要+1;
let month = new Date().getMonth() +1;
//日
let day = new Date().getDate();
//时
let hour = new Date().getHours();
//分
let minute = new Date().getMinutes();
//秒
let second = new Date().getSeconds();

let time = year + '-' + month + '-' + day 


</script>


<template>
    <el-card class="page-container" v-if = isZs>
        <template #header>
            <div class="header">
                <span>文章管理</span>
                <div class="extra">
                    <el-button type="primary" @click=" visibleDrawer =true;title='添加文章';clearArticleModel()">添加文章</el-button>
                </div>
            </div>
        </template>
        <!-- 搜索表单 -->
        <el-form inline>
            <el-form-item label="文章分类：">
                <el-select placeholder="请选择" v-model="categoryId">
                    <el-option 
                        v-for="c in categorys" 
                        :key="c.id" 
                        :label="c.categoryName"
                        :value="c.id">
                    </el-option>
                </el-select>
            </el-form-item>

            <el-form-item label="发布状态：">
                <el-select placeholder="请选择" v-model="state">
                    <el-option label="已发布" value="已发布"></el-option>
                    <el-option label="草稿" value="草稿"></el-option>
                </el-select>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" @click="getArticles()">搜索</el-button>
                <el-button @click="categoryId='';state=''">重置</el-button>
            </el-form-item>
        </el-form>
        <!-- 文章列表 -->
        <el-table :data="articles"   style="width: 100%" >
            <el-table-column label="文章标题"  prop="title"></el-table-column>
            <el-table-column label="分类"  prop="categoryName"></el-table-column>
            <!-- <el-table-column label="发布内容"  prop="content" ></el-table-column> -->
            <el-table-column label="发表时间"  prop="createTime"> </el-table-column>
            <el-table-column label="状态" prop="state"></el-table-column>
            

            <el-table-column label="操作" width="200">
                <template #default="{ row }">
                    <el-button   type="primary" round  @click="isZs = false , articleDetail(row)" >查看详细</el-button>
                    <el-button :icon="Edit" circle plain type="primary" @click=" updateArticle(row)"></el-button>
                    <el-button :icon="Delete" circle plain type="danger" @click="deleteArticle(row)"></el-button>
                </template>
            </el-table-column>
            <template #empty>
                <el-empty description="没有数据" />
            </template>
        </el-table>
        <!-- 分页条 -->
        <el-pagination v-model:current-page="pageNum" v-model:page-size="pageSize" :page-sizes="[3, 5 ,10, 15]"
            layout="jumper, total, sizes, prev, pager, next" background :total="total" @size-change="onSizeChange"
            @current-change="onCurrentChange" style="margin-top: 20px; justify-content: flex-end" />
    </el-card>

        <!-- 展示详细信息 -->
  <el-card class="page-container2"  style="max-width: 480px" v-else="isZs">
      <h1 style="width: 200px;height: 50px; margin: 0 auto;">{{ articles.title }}</h1>
      <span>最后更新时间: {{ articles.updateTime }}  </span>
        <hr>
      <img class="zstp" :src="articles.coverImg" alt="">
      
      <div> {{ articles.content }} </div>
      <el-button class="an"  type="primary" round  @click=" isZs=true;refreshPage() " >返回</el-button>
  </el-card>

    <!-- 抽屉 -->
    <el-drawer v-model="visibleDrawer" :title="title" direction="rtl" size="50%">
            <!-- 添加文章表单 -->
            <el-form :model="articleModel" label-width="100px" >
                <el-form-item label="文章标题" >
                    <el-input v-model="articleModel.title" placeholder="请输入标题"></el-input>
                </el-form-item>
                <el-form-item label="文章分类">
                    <el-select placeholder="请选择" v-model="articleModel.categoryId">
                        <el-option v-for="c in categorys" :key="c.id" :label="c.categoryName" :value="c.id">
                        </el-option>
                    </el-select>
                </el-form-item>
                <el-form-item label="文章封面">
                    <!-- auto-upload:是否自动上传
                        action: 服务器接口路径
                        name: 上传的文件字段名
                        headers: 设置上传的请求头
                        on-success: 上传成功的回调函数 -->

                    <el-upload class="avatar-uploader" 
                    :auto-upload="true" 
                    action="/api/upload"
                    name="file"
                    :headers="{'Authorization': tokenStore.token}"
                    :on-success="uploadSuccess"
                    :show-file-list="false"
                    >
                        <img v-if="articleModel.coverImg" :src="articleModel.coverImg" class="avatar" />
                        <el-icon v-else class="avatar-uploader-icon">
                            <Plus />
                        </el-icon>
                    </el-upload>
                    
                </el-form-item>
                <!-- 文章内容需要使用到富文本编辑器，这里咱们使用一个开源的富文本编辑器 Quill -->
                 <!-- v-model:content="articleModel.content" -->
                <el-form-item label="文章内容">
                    <div class="editor">
                        <quill-editor
                        theme="snow"
                       
                        v-model:content="articleModel.content"
                        contentType="html"
                        >
                    </quill-editor>
                    </div>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary"  @click="title==='添加文章' ? addArticle('已发布'): articleUpData('已发布')">发布</el-button>
                    <el-button type="info" @click="title==='添加文章' ? addArticle('草稿'): articleUpData('草稿')">草稿</el-button>
                </el-form-item>
            </el-form>
        </el-drawer>



</template>


<style lang="scss" scoped>
.page-container {
    min-height: 100%;
    box-sizing: border-box;

    .header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
}

.page-container2 {
    min-height: 100%;
    min-width: 60%;
    margin: 0 100px 0 50px;
    letter-spacing:normal;
    .an {
    
    position: absolute; /* 绝对定位按钮 */  
    bottom: 88px; /* 距离卡片底部10px */  
    right: 580px; /* 距离卡片右侧10px */
  
}

}

/* 抽屉样式 */
.avatar-uploader {
    :deep() {
        .avatar {
            width: 178px;
            height: 178px;
            display: block;
        }

        .el-upload {
            border: 1px dashed var(--el-border-color);
            border-radius: 6px;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: var(--el-transition-duration-fast);
        }

        .el-upload:hover {
            border-color: var(--el-color-primary);
        }

        .el-icon.avatar-uploader-icon {
            font-size: 28px;
            color: #8c939d;
            width: 178px;
            height: 178px;
            text-align: center;
        }
    }
}
.editor {
  width: 100%;
  :deep(.ql-editor) {
    min-height: 200px;
  }
}
.zstp {
    max-width: 50%; /* 图片最大宽度为容器宽度 */  
    height: auto; /* 高度自动，以保持宽高比 */ 
}


</style>